Stool



C. ZIMMERLI.

STOOL.

APPLICATION FILED OCT. ZI, 1920. 1,43%630, Patented Dec. 5,1922,

. 2 SHEETSSHEET I.

M M 4 ATTORNEYS.

C. ZIMMERLI.

STOOL.

APPLICATION FILED OCT. 21, 1920.

r 0 A 9 0 M a a 7? m g E LILZI T im E 0 C u A/ Qnu 8 d 5 m J @M 6 1 6 E Aw o Q g a 7 a 9 M INVENTOR M/ELQATTORNEY 8 Patented Dec. 5, 1922.

PATENT OFFICE.

CHARLES ZIMMERLI, or aocnns'rna, nnw YQRK.

STOOL.

Application filed October 21, 1920. Serial No. 418,511.

To all whom it may concern: I

Be it known that I, CHARLES ZIMMERLI, a citizen of the United States, and resident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Stools, of which the following is a specification.

The present invention relates to stools and an object thereof is to provide a stool which will be strong and durable in use and at the same time adjustable to accommodate it readily to different positions. Another object of the invention is to provide an improved adjustable leg for stools. A further object of the invention is to provide an improved leg tip or foot. A still further object of the invention is-to provide an improved back. Another and still further object of the invention is to provide an improved adjustable connection between a back and the legs of a stool.

To these and other ends the invention consists of certain parts and combinations of parts, all of which will be hereinafter described, the novel features being pointed out in the appended claims.

In the drawings:

Fig. 1 is a side view of a stool constructed in accordance with this invention;

Fig. 2-is a front view;

Fig. 3 is a plan view of the back to the stool;

Fig. 4 is a fragmentary section on the line M, Fig. 3;

Fig. 5 is a detail view showing the manner in which the back is secured to the stool;

Fig. 6 is a section on the line 66, Fig. 5;

Fig. 7 is a section on the 'line 7-7, Fig. 2;

Fig. 8 is an enlarged fragmentary view showing a portion of one of the legs;

Fig. 9 is a detail view of the leg tip or foot;

Fig. 10 is a fragmentary view of another embodiment of the leg;

Fig. 11 is a section on the line 1111, Fig. 10;

Fig. 12 is a fragmentary View of another embodiment of the leg; and

Fig. 13 is a section on the line 13-13, Fig. 12.

Referring more particularly to the drawings, 1 indicates the seatof the stool which, in this instance, is formed of wood and has a ring shaped flange 2 of metal or other suitable material secured to the under side thereof. This flange 2 has the legs secured thereto by rivets 3. Each leg, in this in-' stance, comprises an upper portion 4 and a lower portion 5, bothformed from angle lI'OIl, the lower one being slightly larger than the upper one and receiving such upper one. In order to maintain the guiding relation between the legs, the upper sections have guide pieces 6 secured to the inner faces thereof and extending around the free edges of the lower sections. The lower sections preferably also have longitudinally extending series of bolt openings 7 in which bolts 8 provided on the upper sections are adapted to operate in order to secure the lower sections in different adjusted positions on the upper sections. The upper sections are preferably connected together by a sheet metal strip 9 which is'bent into rectangular form and secured preferably by welding, to the inner faces of the upper sections 4 in the manner illustrated in Fig. 7

.With the object in view of providing each leg with a tip or foot, each lower section has one of its flanges extended beyond the other at 10, as illustrated in dotted lines in Fig. 9 and this extended portion is pressed to make it concavo convex and is then bent at 11 laterally so as to abut the free end of the other flange. 4

In the embodiment of the invention shown in Figs. 10 and 11, each upper section 4 has a plate 6 secured to its inner face and extended around the edges of its flanges so as to overhang the lower section 5. The rectangular brace frame 9 is secured to this plate and. the plate is in turn secured to the upper section, all preferably by welding. The openings 7 are arranged, in this instance, in the lower section 5, the upper section 1 and the plate 6 being provided with registering openings through which the bolt 8 may pass.

In the embodiment shown in Figs. 19 and 13, each upper section 4 is provided with a series of openings 7 and the clips or guide plates 6 are secured to the outer face of the lower section 5, the inner ends of said clips being bent around the free edges of the flanges of the section 5 to overhang the inner face of the section 4 as shown in Fi 13. The rectangular brace frame 9 in this instance, has projections 9 at its corners which are secured to the corners of the angle pieces 4 and .are shaped away from such angle pieces adjacent the freeedges of such pieces so that the overhanging portions of the plates 6 will have space to operate.

The stool maybe provided with a back which, in this instance, comprises a back piece 12 having cars 13 secured to the rear face thereof and projecting rearwardly therefrom. A cross piece 14 having ears or lugs 15 projecting forwardly from opposite ends is pivoted at 16 to'the ears 13. This cross piece. is provided with slots 17 in its projections 15, such slots being adapted toreceive bolts 18 secured to the ears 13.. By this arrangement the back piece 12 may be adjusted about the pivots 16 to conform to the back of the user. A double arm leaf spring 19 is secured centrally at 19 to the rear face of the back 12 and has its arms bearing against the cross piece 14. If the I bolts 18 be loosened, then the back-will automatically accommodate itself to the back of the user, the spring tending to holdthe back normally in an upright position. The cross piece 14 connects the upper ends of two uprights 20, these uprights extending downwardly from the cross piece and having their lower ends deflected forwardly at 21 to pass under-the seat 1 and downwardly at 22 to bear against the rear faces of the upper sections 4 of the legs. In order to permit the back piece 12 to be vertically adjustable, 'an adjustable connection is provided between these uprights 20 and the legs. In this in-' stance, this connection embodies for each leg, a V shaped clamp 23 having its ends turned inwardly at 24 and engaging the diverging ends 25 of a clamp piece 26. This clamp piece 26 carries a clamping screw 27 which is adapted to engage the inner angularly arranged faces of the upper section 4 p of the leg in the manner shown in Figs. 5

and 6, and thus firmlIy holding a portion 22 of an upright 20 firm y against the rear face of the upper section 4 of the leg.

A stool or chair constructed in accordance with this invention is strong and durable. It is especially designed for use by factory operatives, where the strains and stresses are very great, causing the racking of ordinary wooden stools. This stool has a leg of novel construction permitting it to be readily adjustable and when adjusted to hold its-adjustment. A tip or foot piece is provided which facilitates the movement of the stool over the floor without injury to the floor. A back piece is providedon the stool readily adjustable to the back of the'user and adjustably connected to the legs of the stool in nae'meo such a manner that the adjustment will be held against accidental displacement.

at I claim as m invention and desire to secure by Letters atent is:

1. A stool comprising a seat, legs secured to said seat and each comprising an upper portion formed of angle iron, and a lower portion formed ofangle iron and adjustable on,the outer face of the u per portion, a continuous frame formed 0 a single metal strip and welded to the upper portions of the legs within the angles formed by the sides of the angle irons, bolts for securing the upper portions of the legs to the lower portions, and separately formed guide pieces secured to the inner faces of the upper portions of the legs and extending over said faces and around the edges of the lower portions to prevent lateral movement of the lower portions on the upper portions.

2. A stool comprising a seat, legs secured to such seat, a back, two u rights diverging downwardly therefrom and cooperating with two of the legs, and two clamps, each securing one of the uprights to a leg, the clamps being separate from each other and relatively ad ustable in the direction of the legs and the uprights, so that the clamps may be raised and lowered on the legs, notwithstanding the diverging relation of the legs.

3. A stool comprising a seat, legs secured to said seat and having angle iron upper portions, a back, two uprights extending downwardly from the back and cooperating with the angle'iron upper portions of the legs, and individual clamps for securing each upright to a leg, each clamp comprising a V shaped clamping member with inwardly turned ends, a second clamping member having its ends received under the inwardly turned portions of the V shaped clamping member, and a screw carried by the last mentioned clamping member and engaging the angle iron leg between its flanges.

4. A stool comprising a seat, legs secured to said seat and having angle iron upperthe ends of the inwardly turned portions of the V shaped clamping member, and a screw carried by the last mentioned clampingmember and engaging the angle iron leg between its flanges.

CHARLES ZIRLI. 

